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Pneumatic tire

A technology of pneumatic tires and tire shoulders, applied in tire parts, tire tread/tread pattern, transportation and packaging, etc., can solve problems such as inconsistency in operation stability and riding comfort, and achieve excellent appearance and flexibility. Consistent effect

Inactive Publication Date: 2007-03-21
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, these pneumatic tires have a problem that these pneumatic tires produce a problem of inconsistency in each of handling stability and riding comfort during running of the vehicle.

Method used

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  • Pneumatic tire
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Examples

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Embodiment Construction

[0034] Pneumatic tires according to embodiments of the present invention will be described below with reference to the drawings.

[0035] As shown in FIG. 1 , an axial sectional view of a pneumatic tire of a first embodiment of the present invention is shown and a partially enlarged plan view of a tread pattern of the pneumatic tire is shown in FIG. 2 , the pneumatic tire of the first embodiment 1 (Hereinafter often simply referred to as a tire) consists of a tread portion 2, a sidewall portion 3, and a bead portion 4. The sidewall portion 3 extends radially inward from both ends of the tread portion 2, and the bead portion 4 It is connected to the radially inner end of the sidewall portion 3 .

[0036] The tire 1 has a carcass 6 constituted by a body portion 6 a extending from a tread portion 2 through a sidewall portion 3 to a bead portion 4 . The carcass 6 is folded back around the bead cores 5 of the bead portions 4 in a direction from the axially inner side to the axiall...

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PUM

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Abstract

A pneumatic tire has longitudinal grooves formed continuously in a circumferential direction of the pneumatic tire in a region of a buttress part disposed between a tread part and a sidewall part; a plurality of transverse grooves formed continuously with the longitudinal grooves in the above-described region of the buttress part in an axial direction of the pneumatic tire, with the transverse grooves spaced at certain intervals in the circumferential direction of the pneumatic tire; and a concave portion formed in each of a plurality of blocks surrounded with the longitudinal grooves and the transverse grooves, with the concave portion extended in the circumferential direction of the pneumatic tire. The above-described region of the buttress part is adjacent to a periphery of an end of a contact surface of the tread part. The number of the concave portions is varied according to a circumferential length of each of the blocks.

Description

[0001] This application claims priority to Patent Application No. 2005-268056 filed in Japan on Sep. 15, 2005, which is incorporated by reference in its entirety. technical field [0002] The present invention relates to a pneumatic tire, and more particularly to a pneumatic tire having an improved structure of a concave portion formed on a surface of the pneumatic tire, thereby improving the handling stability and riding comfort of the vehicle. In the block of the shoulder portion between the tread portion and its sidewall portion. Background technique [0003] In this type of pneumatic tire, recessed portions are formed in blocks serving as pattern constituent elements to improve the design for finishing the appearance of the shoulder portion, and to improve handling stability and ride comfort by adjusting the degree of rigidity of these blocks . Another purpose of forming the recesses in these blocks is to make it possible to assume a venting function in order to prevent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/117
CPCB60C11/11B60C11/13B60C11/01Y10S152/03
Inventor 铃木和也
Owner SUMITOMO RUBBER IND LTD
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